NHTSA Complaint #11581032 — 2018 MAZDA MAZDA6

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11581032
Vehicle	2018 MAZDA MAZDA6
Component	ENGINE
Date of Incident	April 3, 2024
Date Filed	April 3, 2024
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	NC

Consumer Description

Start engine when cold and it knocks/ taps from the valve cover very loud, found a tab for valve lifters. Mazda said I’m out of warranty and it would be a 2k fix on a car I just bought second hand. A lot of other drivers have experienced the same issue and have even said it’s a safety issues as when it happens for long enough it could cause the cams to wear down causing the car to stall out in traffic or in a dangerous road situation. Very dangerous imo and should be fixed for free as Mazda admitted that it’s a design flaw of the HLA

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